WTFPL is a terrible license
The use of WTFPL as a license is discouraged for multiple reasons.
- No Warranty disclaimer: This could open you up to being sued.
- Swearing: This prevents settings like schools from using your content.
- Not OSI Approved: Same as public domain?
The Open Source Initiative chose not to approve the license as an open-source license, saying:
It's no different from dedication to the public domain. Author has submitted license approval request – author is free to make public domain dedication. Although he agrees with the recommendation, Mr. Michlmayr notes that public domain doesn't exist in Europe. Recommend: Reject.